/*
 * $Id: muscl-symboltable.cpp 355 2010-05-27 03:37:50Z cmtonkinson@gmail.com $
 *
 * This file is part of the Symphony project <http://code.google.com/p/symphonymud/>
 * Copyright 2005-2010 Chris Tonkinson <cmtonkinson@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "muscl-symbol.h"
#include "muscl-symboltable.h"

SymbolTable::SymbolTable( void ) {
  return;
}

SymbolTable::SymbolTable( const std::string& name ):
    _name( name ) {
  return;
}

SymbolTable::~SymbolTable( void ) {
  for ( std::map<std::string,Symbol*>::iterator it = table().begin(); it != table().end(); ++it ) {
    delete it->second;
  }
  return;
}

void SymbolTable::insert( Symbol* symbol ) { // public
  table()[symbol->name()] = symbol;
  return;
}

void SymbolTable::remove( Symbol* symbol ) { // public
  table().erase( symbol->name() );
  return;
}

Symbol* SymbolTable::lookup( const std::string& name ) { // public
  std::map<std::string,Symbol*>::iterator it;
  if ( ( it = table().find( name ) ) == table().end() ) {
    return NULL;
  } else {
    return it->second;
  }
}

std::string SymbolTable::dump( void ) const {
  std::string buf;
  for ( std::map<std::string,Symbol*>::const_iterator it = table().begin(); it != table().end(); ++it ) {
    buf.append( "  " ).append( it->second->dump() ).append( 1, '\n' );
  }
  return buf;
}
